One day Dolphin spots a derelict pirate ship floating on the high seas. She becomes so excited by the idea of exploring it that her friend Whale punches a hole in the hull to sink the old ship. Soon Dolphin's friends Sawfish, Electric Eel, Octopus, and Walrus also come to help, and together they find a treasure chest. With two question-and-answer flaps and a jigsaw puzzle illustration on every two-page spread, this book is part of a series encouraging beginning readers to observe details and glean information from their reading. The six 15-piece puzzles feature interlocking borders, allowing youngsters to connect the illustrations together as they please.